我该怎么读这个数组（＆＃34; stdClass对象＆＃34;）

Question

我使用的是Quizlet API 2.0，我对这个

很新

如何从以下内容中读取值：

stdClass Object ( [id] => 102269 [name] => Learn Spanish with Cats! [set_count] => 3 [user_count] => 10 [created_date] => 1308035691 [is_public] => 1 [has_password] => [has_access] => 1 [has_discussion] => 1 [member_add_sets] => 1 [description] => This set is exclusively for Spanish flashcard sets with relevant cat images as the set definitions. [sets] => Array ( [0] => stdClass Object ( [id] => 6081999 [url] => http://quizlet.com/6081999/lesson-4-with-catsdogs-flash-cards/ [title] => Lesson 4 (with cats+dogs) [created_by] => wsvincent [term_count] => 33 [created_date] => 1311984796 [modified_date] => 1312490710 [has_images] => 1 [subjects] => Array ( [0] => spanish cats dogs ) [visibility] => public [editable] => groups [has_access] => 1 ) [1] => stdClass Object ( [id] => 5855751 [url] => http://quizlet.com/5855751/paso-a-paso-book-1-chapter-4-flash-cards/ [title] => Paso a Paso Book 1 Chapter 4 [created_by] => catdawg426 [term_count] => 30 [created_date] => 1307761267 [modified_date] => 1307819129 [has_images] => 1 [subjects] => Array ( [0] => spanish ) [visibility] => public [editable] => only_me [has_access] => 1 ) [2] => stdClass Object ( [id] => 5873819 [url] => http://quizlet.com/5873819/los-gatos-de-viaje-flash-cards/ [title] => Los Gatos de Viaje! [created_by] => tiffreja [term_count] => 21 [created_date] => 1307996657 [modified_date] => 1307996796 [has_images] => 1 [subjects] => Array ( [0] => spanish [1] => language [2] => foreign ) [visibility] => public [editable] => only_me [has_access] => 1 ) ) [members] => Array ( [0] => stdClass Object ( [username] => philfreo [role] => creator [email_notification] => 1 ) [1] => stdClass Object ( [username] => milkncookies [role] => member [email_notification] => 1 ) [2] => stdClass Object ( [username] => Icypaw [role] => member [email_notification] => ) [3] => stdClass Object ( [username] => luckycat10 [role] => member [email_notification] => ) [4] => stdClass Object ( [username] => jeffchan [role] => member [email_notification] => ) [5] => stdClass Object ( [username] => catchdave [role] => member [email_notification] => 1 ) [6] => stdClass Object ( [username] => tiffreja [role] => member [email_notification] => 1 ) [7] => stdClass Object ( [username] => catdawg426 [role] => member [email_notification] => 1 ) [8] => stdClass Object ( [username] => ihaque [role] => member [email_notification] => 1 ) [9] => stdClass Object ( [username] => jalenack [role] => member [email_notification] => 1 ) ) )

例如，如果我想获得第一组的名称，“用Cats学习西班牙语”，我该如何通过变量回应它？

它已经将JSON转换为我认为的数组：

$data = json_decode($json);

Answer 1

您的对象不是数组，而是对象。因此，请使用->运算符访问其属性：

echo $data->name;

它包含一个属性，它本身就是一个附加对象的数组。例如，要获取ID为6081999的URL，您可以执行以下操作：

echo $data->sets[0]->url;
// http://quizlet.com/6081999/lesson-4-with-catsdogs-flash-cards/

Answer 2

使用功能键

eg echo key($array)

Answer 3

这是一个简单的解决方案，用get_object_vars

转换php中数组中的 stdClass对象

请注意：http://php.net/manual/fr/function.get-object-vars.php

前：

debug($array);
$var = get_object_vars($array);
debug($var);

或者将debug替换为print_r

CDT

Answer 4

当你使用json_decode（）

时，我已经看过了

$data = json_decode();

你可以发送一些参数，第一个是＆＃34; $ json＆＃34;，它将是json字符串

{"1":"first","2":"second"}

但是，带有一个参数的json解码返回一个Object，第二个参数的默认值是＆＃34; false＆＃34;。如果你想要回到数组中，你只需要使用第二个参数并发送＆＃34; true＆＃34;。

$data =json_decode($json,true);

你可以像数组一样重新调用它。 ：）

Answer 5

例如，如果数组中有stdClass对象，则
$user = $result1->fetch_object()然后将$user设置为变量   $val = $user->user_id（确保user_id是您的数据库列名称，及其列名称）。您将在$ val中获得一个来自数据库的值。